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(NoMoae'x.)

J. F. APPLEBY.

, y HARVESTER.

No. 324,350. Patented Aug. 18, 188.5.

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UNITED STATES PATENT OEEICEe JOHN F. APPLEBY, OF MINNEAPOLIS, "MINNESOTA, ASSIGNOR TO THE v- MINNEAPOLIS HARVESTER WORKS, OF SAME PLACE.

HARVESTER.

ESPECIFICATION forming part of Letters Patent .310.324,350, dated August 18,1885.

(No model.)

T all w/wm t may concern:

Be it known that I, JOHN F. APPLEEY, of Minneapolis, Minnesota, have invented a certain Improvement in Harvesters, of which the following is a specification.

My improvement relates to the metallic yokes which are cast or otherwise formed in one piece with the rack-standards bolted to the frames of harvesters, and which are employed for preserving the engagement of the gear of the drive-wheel with the pinion on the counter-shaft, through which power is translnitted from the drive-wheel. The yoke for this pupose is hung over the box which affords the bearing for the end of the countershaft upon which the pinion is mounted; and my invent-ion consists in the insertion through the bight of the yoke of an adjusting screwbolt provided with suitable jam nuts and adapted to bear upon the exterior of the box in which the counter-shaft is journaled, and thereby affording a means for accuratelyl adjusting and permanently maintaining the distance between the center of the counter-shaft and the curved rack which engages the windlass-gear affixed to the axle upon which the drive-wheel turns.

In the accompanying drawings, illustrating my invention, Figure l is an elevation ofthe metallic rack-standard and yoke, showing in transverse section the counter-shaft and the box in which the counter-shaft is journaled, and showing the adjusting screw-bolt inserted through the bight of the yokc and bearing upon the exterior of said box. Fig. 2 is a transverse section of the rack-standard and yoke, taken through the line m a: on Fig. l.

Letters Patent of the United States No. 310,928, dated January 20, 1885, granted to me for an improvement iu mechanism for raising and lowering harvestingmachines, shows and describes a sample of the type ot' raising and lowering mechanism in which the windlass-shaft is inserted through the center of the drivewheel, and is provided with a gear for engaging the teeth of a curved rack-standard bolted to the harvester-frame. The said rack-standard is also provided with a V-shaped yoke, the bight of which is hung directly upon the box in which the countershaft has its bearing.

In my present invention I employ a similar rack-standard composed of the two curved members f f, united at the top and bottom, and provided with the usual bolt-holes, I 2 3 1i, for the reception of the bolts by which the rack-standard is fastened to the main frame of the harvester, and provided with the usual curved rack, f. The yoke is composed of the converging arms f2 and f3, the meeting of which forms the bight f 4, which embraces the box e. A boss, 6, cast upon the convex side of the bight of the yoke, is perforated to receive the adjusting screw-bolt 7, provided with the nuts 8 and 9, respectively upon the inner and outer sides of the bight, and serving as jam-nuts to securely fasten the bolt 7 in the position to which it may be adjusted.

The inner end of the bolt 7 bears, as will be l seen, upon the exterior of the box c.

By loosening the bolts 8 and 9 the set-screw 7 may be turned back or forth, as may be required, to effect the adjustment of the box e relatively to the segmental rack f', so that the rack will be concentric with the countershaft c', having its bearing in the box e.

Vhen such adjustment has been effected, the tightening of the jam-nuts 8 and 9 securely fastens the adjusting-bolt 7, and the permanent maintenance of the proper relation between the counter-shaft c and the rack f is thereby secured.

I claim as my invention- 1. In a harvester-frame, a metallic yoke and means for adjusting the saine, whereby the proper distance is maintained between the center ot' the drive-wheel and the center of the counter-shaft through which power is transmitted from the drive-wheel.

2. A metallic rack-standard and yoke, substantially such as herein described, provided with suitable bolt-holes for the reception of the bolts by which it is secured to the frame of the harvester, and adapted to embrace the box e, in which the counter-shaft c has its bearing,and provided with the adjusting screwbolt 7, inserted through the bight of the yoke f l for the purpose of centralizing the journal formed in the 'box` e relatively to the curved bnaftiouwith box e, which affords the bearing" mok f. for the counter-shaft through which power is xo 3. The curved metallic rackf, formed uptrausmitted from the drivng'wheel gen1'.

ou :L suitable standard adapted to be bolted 41 5 to the frame of :L harvester and cash o1* other- JOHN F' APPLLLY wise formed in one piece with a yoke the bighb Witnesses: of which is provided with an adjusting serew- C. M. CASTLE,

bolt, substantially such as described, inA com l HENRY HoNKoMP. 

